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A Bio-inspired Interlocking Structure to Enhance Metal-Polymer Joint Strength by Additive Manufacturing and Injection Molding Processes 认领 引用
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作者 Heng Zhang Zeyan Li Xiaohong Ding 《Journal of Bionic Engineering》 SCIE EI CSCD 2026年第3期1662-1679,共18页
The connection between metal and polymer is crucial for lightweight manufacturing in the electronics,automotive,aerospace industries and so on.Inspired by biological curves,this study proposes a novel biomimetic inter... The connection between metal and polymer is crucial for lightweight manufacturing in the electronics,automotive,aerospace industries and so on.Inspired by biological curves,this study proposes a novel biomimetic interlocking structure,designed specifically to enhance the metal-polymer joint strength.Through this approach,superior connection strength is achieved compared to conventional structures.Three different interlocking structures—Dragonfly Head-Neck interlocking structure,Kelvin interlocking structure,and the propopsed Curved Body-Centered Cubic Lattice interlocking structure—were additively manufactured with stainless steel,followed by injection molding to form the metal-polymer connection structures.The bonding performance of these structures was evaluated through finite element analysis and experiment.The results indicate that the Curved Body-Centered Cubic lattice interlocking structure with a 10%fill rate exhibited the highest bonding strength,outperforming both the Kelvin interlocking structure and the Dragonfly Head-Neck interlocking structure.Reducing the stiffness of the metal subatrate near the metal-polymer connection rigon can establish efficient load transfer path,which leads to a uniform stress distribution within the polymer,and allows the polymer to better withstand tensile forces during loading,finally achieve the goal of enhance the bonding strength of of the metal-polymer jointing.This research offers an innovative approach to enhancing mechanical connection interface strength,with significant implications for improving the durability and performance of metal-polymer composites. 展开更多
关键词 Additive manufacturing Biomimetic interlocking structure Metal-polymer jointing Injection molding Connection strength
Accelerating Optimization Design of Bio-inspired Interlocking Structures with Machine Learning 认领 引用 被引量：2
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作者 Zhongqiu Ding Hong Xiao +1 位作者 Yugang Duan Ben Wang 《Acta Mechanica Solida Sinica》 SCIE EI CSCD 2023年第6期783-793,共11页
Structural connections between components are often weak areas in engineering applications.In nature,many biological materials with remarkablemechanical performance possess flexible and creative sutures.In this work,w... Structural connections between components are often weak areas in engineering applications.In nature,many biological materials with remarkablemechanical performance possess flexible and creative sutures.In this work,we propose a novel bioinspired interlocking tab considering both the geometry of the tab head and neck,and demonstrate a new approach to optimize the bio-inspired interlocking structures based on machine learning.Artificial neural networks for different optimization objectives are developed and trained using a database of thousands of interlocking structures generated through finite element analysis.Results show that the proposed method is able to achieve accurate prediction of the mechanical response of any given interlocking tab.The optimized designs with different optimization objectives,such as strength,stiffness,and toughness,are obtained efficiently and precisely.The optimum design predicted by machine learning is approximately 7.98 times stronger and 2.98 times tougher than the best design in the training set,which are validated through additive manufacturing and experimental testing.The machine learning-based optimization approach developed here can aid in the exploration of the intricate mechanism behind biological materials and the discovery of new material designs boasting orders of magnitude increase in computational efficacy over conventional methods. 展开更多
关键词 Interlocking structure Performance prediction Additive manufacturing Artificial neural network Finite element analysis
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Biomimetic Engineering High-Sensitivity Flexible Pressure Sensors with Ultra-Wide Pressure Detection Range via Synergistic Interlocked Structures and Multi-scale Micro-dome Interfaces 认领 引用
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作者 Junqiu Zhang Jiachao Wu +16 位作者 Lili Liu Tao Sun Xiangbo Gu Zijian Shi Xueyang Li Xueping Zhang Yu Chen Jiqi Gao Kejun Wang Bin Zhu Wenze Sun Yutao Mei Yubo Yan Yan Li Zhijing Wu Zhiwu Han Luquan Ren 《Journal of Bionic Engineering》 SCIE EI CSCD 2025年第5期2550-2560,共11页
Flexible pressure sensors have excellent prospects in applications of human-machine interfaces,artificial intelligence and human health monitoring due to their bendable and lightweight characteristics compared to rigi... Flexible pressure sensors have excellent prospects in applications of human-machine interfaces,artificial intelligence and human health monitoring due to their bendable and lightweight characteristics compared to rigid pressure sensors.However,arising from the limited compressibility of soft materials and the hardening of microstructures at the device interface,there is always a trade-off between high sensitivity and broad sensing range for most flexible pressure sensors,which results in a gradual saturation response and limits their practical applications.Herein,inspired by the distinct pressure perception function of crocodile receptors,a highly sensitive and wide-range flexible pressure sensor with multiscale microdomes and interlocked architecture is developed via a facile PS-decorated molding method.Combined with interlocked architecture,the multiscale dome-shaped structured interface enhances the compressibility of the material through structural complementarity,increases the contact area between functional materials,which compensates for the stiffness induced by the deformation of dense microscale columns.This effectively mitigates structural hardening across a wide pressure range,leading to the overall high performance of the sensor.As a result,the obtained sensor exhibits a low detection limit of 5 Pa,a high sensitivity of 6.14 kPa-1,a wide measurement range up to 231 kPa,short responseecovery time of 56 ms/69 ms,outstanding stability over 10,000 cycles.Considering these excellent properties,the sensor shows promising potential in health monitoring,human-computer interaction,wearable electronics.This study presents a strategy for the fabrication of flexible pressure sensors exhibiting high sensitivity and a wide pressure response range. 展开更多
关键词 Biomimetic engineering Flexible pressure sensors Ultrahigh sensitivity and wide-range detection Multiscale interface Interlocked structure
Interlocked MXene/rGO aerogel with excellent mechanical stability for a health-monitoring device 认领 引用 被引量：7
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作者 Shufang Zhao Wenhao Ran +1 位作者 Lili Wang Guozhen Shen 《Journal of Semiconductors》 EI CAS CSCD 2022年第8期60-66,共7页
Two-dimensional(2D)materials have attracted considerable interest thanks to their unique electronic/physical-chemical characteristics and their potential for use in a large variety of sensing applications.However,few-... Two-dimensional(2D)materials have attracted considerable interest thanks to their unique electronic/physical-chemical characteristics and their potential for use in a large variety of sensing applications.However,few-layered nanosheets tend to agglomerate owing to van der Waals forces,which obstruct internal nanoscale transport channels,resulting in low electrochemical activity and restricting their use for sensing purposes.Here,a hybrid MXeneGO aerogel with a three-dimensional(3D)interlocked network was fabricated via a freeze-drying method.The porous MXeneGO aerogel has a lightweight and hierarchical porous architecture,which can be compressed and expanded several times without breaking.Additionally,a flexible pressure sensor that uses the aerogel as the sensitive layer has a wide response range of approximately 0-40 kPa and a considerable response within this range,averaging approximately 61.49 kPa-1.The excellent sensing performance endows it with a broad range of applications,including human-computer interfaces and human health monitoring. 展开更多
关键词 flexible electronic MXeneGO interlocking structure high performance healthcare monitoring
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A Durable Self‑pumping Textile with High Liquid Unidirectional Transport via an Interfacial Interlocking Strategy 认领 引用
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作者 Xiaobin Zhang Xuetao Xu +3 位作者 Lianxin Shi Yikai Zhang Yuzhe Wang Shutao Wang 《Advanced Fiber Materials》 SCIE EI CAS CSCD 2025年第5期1648-1659,共12页
Wicking textiles are known to be superior to conventional textiles in body sweat management.However,many existingwicking textiles suffer inadequate durability and perspiration performance after repeated abrasion and w... Wicking textiles are known to be superior to conventional textiles in body sweat management.However,many existingwicking textiles suffer inadequate durability and perspiration performance after repeated abrasion and washing.Herein,aninterfacial interlocking strategy was demonstrated to prepare a durable self-pumping textile with strong interfacial adhesion(up to 21.47±1.73 N/cm)between the hydrophilic and hydrophobic layers.Unlike conventional transfer prints,the sequencedcombination of powder-patterning and hot-pressing enables the in situ formation of the interfacial interlocking structuresbetween the hydrophobic thermoplastic polyurethane(TPU)layer with the cotton fabric.The durable self-pumping textilesexhibit excellent abrasion-proof performance and enduring liquid unidirectional transport compared with the commercialwicking textiles.Furthermore,they show a liquid unidirectional transport capacity of(1385±155)%,much higher than thepreviously reported wicking textiles.This work provides valuable insights for developing future high-performance wickingtextiles,emphasizing enhanced liquid transport efficiency,and durability in demanding conditions. 展开更多
关键词 Self-pumping textile Interfacial interlocking structure Liquid unidirectional transport Abrasion-proof Durability
An interlocked coordination cage based on aromatic amide ligands 认领 引用 被引量：1
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作者 Dan Luo Bo Pan +3 位作者 Jiajia Zhang Chunmiao Ma Yuyang Su Quan Gan 《Chinese Chemical Letters》 SCIE CAS CSCD 2021年第4期1397-1399,共3页
An interlocked M4 L8 coordination cage was synthesized by coordination-driven self-assembly of palladium(Ⅱ)ions with aromatic amide bidentate ligands.The reaction of the ligand and the metal at 2:1 ratio led to... An interlocked M4 L8 coordination cage was synthesized by coordination-driven self-assembly of palladium(Ⅱ)ions with aromatic amide bidentate ligands.The reaction of the ligand and the metal at 2:1 ratio led to the monomeric M2 L4 cage as the kinetic product,while the thermodynamic product M4 L8 cage was obtained by prolongating the reaction.This conve rsion and the interlocked structure was clearly revealed by using~1 H NMR,mass spectrometry and X-ray crystallography.The driving force of interlocking was mainly attributed to the interactions(hydrogen bonding,aromatic stacking and electrostatic interaction)arising from the aptitude of flexibility of the amide ligand. 展开更多
关键词 Coordination cage Interlocked structure Self-assembly ingle-crystal structure Supramolecular chemistry
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Mutual promotion on the mechanical and tribological properties of the nacre-like self-lubricant film designed for demanding green tribological applications 认领 引用 被引量：1
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作者 Hongbo Ju Jing Luan +6 位作者 Yiping Wang Andrey Bondarev Manuel Evaristo Yaoxiang Geng Junhua Xu Albano Cavaleiro Filipe Fernandes 《Friction》 SCIE EI CAS CSCD 2025年第3期171-185,共15页
The inverse relationship between the tribological and mechanical properties of environmentally friendly selflubricant films,induced by the addition of soft lubricant agents that can diffuse quickly at elevated tempera... The inverse relationship between the tribological and mechanical properties of environmentally friendly selflubricant films,induced by the addition of soft lubricant agents that can diffuse quickly at elevated temperatures,has hindered the widespread use of these materials in industrial applications.This paper took this challenge to break through the above established relationship by developing novel nacrelike multilayered Mo2N–SiNx/Ag–SiNxself-lubricant films via an radio frequency(RF)magnetron sputtering system for real applications where harsh conditions at elevated temperatures exist.The multilayered films,deposited by alternating deposition of Mo2N–SiNxand Ag–SiNxmodulation layers,exhibited three phases of face-centered cubic(fcc)Mo2N,fcc Ag and SiNx,where SiNxencapsulated the nano-crystalline Mo2N and Ag phases in each layer to successfully induce a“brick and mortar”nacre-like microstructure(in the area without the coherent structure).The epitaxy growth of the Ag–SiNxlayers with thickness below 6 nm on the Mo2N template resulted in an extraordinary increase in both the hardness and elastic modulus,which was able to prevent severe degradation of the mechanical properties caused by the addition of Ag.The room-temperature anti-friction property could be enhanced by increasing the Ag–SiNxlayer thickness due to the excellent lubricant nature of Ag,which acts in synergy with Mo2N,while the wear rate below 4×10−8mm3/(N·mm)was due to the high mechanical strength.The tribological properties at 600℃also benefited from the interlocked multilayered architecture,which allowed an extreme low friction coefficient of~0.12 and a negligible wear rate(WR).This behavior was attributed to the synergism between the lubricant action of Ag and Mo2N and the tribo-phase transformation from Ag2Mo4O13to Ag2MoO4. 展开更多
关键词 radio frequency(RF)magnetron sputtering system Mo2N-SiNx/Ag-SiNxself-lubricant films interlocked structure epitaxial growth lubrication synergism tribo-phase transformation
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3D crosslinked and interlocked graphene nanointerface enables ultra-tough and strong alumina 认领 引用 被引量：1
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作者 Yameng Jiao Caixiang Xiao +6 位作者 Qingliang Shen Xuemin Yin Shouyang Zhang Wei Li Chuanyun Wang Hejun Li Qiang Song 《Journal of Materiomics》 SCIE CSCD 2025年第5期77-85,共9页
The mechanics of structural ceramics,especially the toughness,are crucial to their service reliability and need to be continuously optimized.Inspired by the“brick-mortar”structure and further adjusting the microstru... The mechanics of structural ceramics,especially the toughness,are crucial to their service reliability and need to be continuously optimized.Inspired by the“brick-mortar”structure and further adjusting the microstructure of“mortar”on the interface,ceramic with strength and toughness up to 444.16 MPa and 13.79 MPa⋅m1/2 is constructed by hot pressed sintering with alumina(Al2O3)as brick and vertical graphene(VG)with active atomic edges as mortar.Relying on the covalent interface between VG grown in-situ and Al2O3,the sliding of Al2O3links the shear-deformation process of the crosslinked and interlocked nanointerface formed by VG,making the VG-enhanced Al2O3ceramics(AVG)obtain super toughness.Moreover,the structure of interlocked VG-nanointerface exhibits an excellent high-temperature resistance,which makes AVG still show the excellent strength of 437.66 MPa and toughness of 11.16 MPa⋅m1/2after heat treatment at 1500℃for 100 h and they are respective 2.51 times and 3.18 times higher than Al2O3in the same condition.This work provides a new thought for the preparation of high-strength,ultra-tough and high-temperature mechanical stable ceramics. 展开更多
关键词 “Brick-mortar”structure Active atomic edges Graphene nanointerface Crosslinked and interlocked structure Strengthen and toughen
Oriented magnetic liquid metal-filled interlocked bilayer films as multifunctional smart electromagnetic devices 认领 引用 被引量：5
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作者 Jinjin Li Yue Zhang +5 位作者 Xufeng Li Chunyan Chen Haihan Zou Peng Yi Xiaofang Liu Ronghai Yu 《Nano Research》 SCIE EI CSCD 2023年第1期1764-1772,共9页
Smart electromagnetic functional devices prepared based on electromagnetic wave responsive materials will provide more convenience for human life in the future.Here,we prepare oriented magnetic liquid metal droplet-fi... Smart electromagnetic functional devices prepared based on electromagnetic wave responsive materials will provide more convenience for human life in the future.Here,we prepare oriented magnetic liquid metal droplet-filled polydimethylsiloxane films with micropillar array patterned surfaces,and further assemble them into bilayer films with interlocked structures.Once compressed,the increase in conductivity of the film due to the tunneling effect between microarrays and the elongation of liquid metal droplets leads to a rapid increase in electromagnetic interference shielding performance.Accordingly,a tunable electromagnetic interference shielding material with high sensitivity and wide control range is obtained,which has potential applications in electromagnetic wave control systems and intelligent electromagnetic protection systems.Meanwhile,we assemble a strain sensor and a magnetic sensor,which can precisely sense pressure and magnetic field according to changes in electromagnetic signal and electrical signal,respectively. 展开更多
关键词 magnetic liquid metal electromagnetic interference shielding interlocked structure electromagnetic sensing magnetic sensing
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